graphsearchopenai.cs

private static async Task<ClientResult<ChatCompletion>> CallOpenAIAPI(string userQuestion, string modelDeploymentName, AzureOpenAIClient azureOpenAIClient, IList<OpenAI.Chat.ChatMessage> functionMessages = null)
{
    var chatCompletionOptions = new ChatCompletionOptions();

    var messages = new List<OpenAI.Chat.ChatMessage>
    {
        new SystemChatMessage("You are a search assistant that helps find information. Only use the functions and parameters you have been provided with."),
        new UserChatMessage(userQuestion)
    };

    if (functionMessages != null)
    {
        foreach (var functionMessage in functionMessages)
        {
            messages.Add(functionMessage);
        }
    }

    chatCompletionOptions.Tools.Add(ChatTool.CreateFunctionTool(
        functionName: "search_microsoft365_documents",
        functionDescription: "Search the Microsfot 365 documents from user's SharePoint and OneDrive.",
        functionParameters: BinaryData.FromString("{\"type\": \"object\",\"required\": [\"searchQuery\"],\"properties\": {\"searchQuery\": {\"type\": \"string\",\"description\": \"the text to search in the documents to get the required information\"}}}")
    ));

    var chatCompletionResponse = await azureOpenAIClient.GetChatClient(modelDeploymentName).CompleteChatAsync(messages, chatCompletionOptions);

    return chatCompletionResponse;
}